Valve



G. L. FISH.

VALVE.

APPLICATlON FILED JANZS,

Patented June 27, 1922.

FIG./.

INVENTOR GEO/7G6 L F75.

ATTORNEY STATES- PATENT OFFICE...

GEORGE LEANDER FISH, OF MODESTO, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO GEO. L. FISH CORPORATION, OF RENO, NEVADA, A CORPORATION OF NEVADA.

VALVE.

To all whom it may concern Be it known that I, GEORGE LEANDER FISH, a citizen of the United States, residing at Modesto, in the county of Stanislaus and State of California, have invented new and useful Improvements in Valves, of which thefollowing is a specification.

Thls invention relates to a valve and especially to a structure which embodies a novel form Of valve seat and which entirely eliminates packing.

One of the Objects of the present invention is to provide a simple substantial valve which may be used both as a check and as an ordinary valve and which is manually opened but automatically closed.

vide a valve which may be readily and quickly taken apart for cleaning, inspection, repairs. etc.

Further objects will hereinafter appear.

The invention consists of the parts and the construction, combination and arrangement of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Fig. 1 is a side elevation of the valve partly broken away.

Fig. 2 is a cross section on line 22 Fig. 1.

Referring to the drawings in detail, A indicates a valve casing in which is mounted a valve 2; This valve is adapted to engage a valve seat member 3, which is secured within the casing by means of a shoulder 4 and a lock nut 5. The valve seat member is ring shaped, as shown in Fig. 1, and is reversible and removable. It presents an annular knife-like seat edge, as at 6, and its life and utility is comparatively long as it is reversible, that is, destruction of one seat permits removal and reversing of the ring and a new seat can, therefore, be provided without renewing or repairing the ring. The valve proper is provided with an angular face 7 which engages the annular knife-like Specification of Letters Patent. Patented June 27 1922 Application filed January 28, 1920. Serial No. 354,538.

,wise provided with a collar 11, between which and the casing is interspaced a spring 12. This spring serves the function of normally retaining the valve on its seat and means must, therefore,'necessarily be provided for lifting the valve away from the seat when opening the same. This is accomplished in the following manner: Secured on a stem B' journalled in the easlng 1s a lifter arm 13. This'arm is fork shaped as at 14 and passes under the collar 11 of the valve stem. Turning movement lmparted to the stem B- will rock the arm 13 and consequently open the valve and release of the stem B will permit the tension of the spring 12 to automatically close the valve. It is therefore manually opened and automatically closed. One of the important features. ofthe present invention is the provision of a structure which entirely eliminates packingsof any nature. This is particularly true as regar s the stem B. The stem is in this instance turnably mounted in a bushing 14 which is secured in a threaded extension 15, formed on the casing. by means of a lock nut 16; endwise movement of the bushing being limited by a collar 17 and a shoulder 18 with which it engages. The stem is otherwise journalled in a lug 19 formed in the opposite side of the casing in central alignment with the extension 15. The stem proper is provided with a square shank extension 20 on its outer end, a rounded portion 21 which is received by the bushing 14 and an angular annular shoulder or collar 22 which engages The stem is otherwise provided with a.

shoulder 24, a square section 25 and an end extension 26 which is received by the bearing lug 19. The hub of the arm 13 is squared to receive the section 25 and the arm abuts the shoulder 24, being held in engagement therewith by means'of a coil spring'27 which is interposed between the hub of the arm and the bearing lug 19. This spring serves two functions: First, that of holding the arm 14; in position and secondly, that of maintaining the annular shoulder 22 in engagement with its annular knife-like seat 23. The shank projection 20 may be provided with a detachable or a permanent handle and it is therefore possible by imparting a turning movement to the stem B to open the valve quickly to full-flow position and to close it in a similar manner, the latter operation, however, being unnecessary as the tension of the spring 12 will, under ordinary .conditions, be suflicient to automaticallyforce the valve into engagement with the seat.

From the foregoing description it can be seen that I have provided a valve which should be practically leak-proof. This is due first, to the construction of the valve seat and secondly, due to the fact that packing of any nature is entirely eliminated. Further, that a valve is provided in which all parts are constructed of metal and that said parts can be quicklyand readily removed whenever desired by merely removing the nozzle and the nuts 5 and 16. Removal of the nut 5 permits the ring 3 and the valve, together with the connected spring to drop out, and removal of the nut 16 permits the bushing 17 and the stem B, together with the arm 14 and the spring 26 to be removed. This is of importance as the valve here shown may be employed in-connection with milk, fruit uices, and similar materials which require a thorough and often cleaning of the valves and pipes.

The annular knife-like edge presented to the valve proper and to the annular shoulder 22 is one of the most important features of the present invention. First of all it should be obvious that seats of this character present such a small area that dirt or similar material cannot lodge thereon and-obstruct the valves from properly seating. Secondly, that foreign material cannot enter the valve seat material by pounding action. And thirdly, that an ideal seat should be readily maintained due to the small area resented. Any slight wear that might take p ace when considering the valve 7 and the annular shoulder 22 is automatically taken care of by the springs 12 and 27. and excess wear may be taken care of either by reversing the 7 parts with which they contact or by renewing the same.

The valve here shown may be used as av check valve, as an ordinary valve or as a combination of the two. This is of importance as it may take care of special installations and will in many instances eliminate the use of two separate valves.

While a more or less specific structure is shown, I wish it understood that various changes in form and proportion may be resorted to within the scope of the appended claims, similarly that the materials and finish of the several parts employed may be such as the experience and judgment of the manufacturer may dictate or various uses may demand;

Vhile the valve seat ring 3 is here shown secured in position by means of a lock nut 5, I wish it understood that a discharge spout or a connecting pipe may serve the same function. 1'

Having thus described my invention, what I claim and desire to secure by Letters Patent is- 1. The combination in a valve apparatus, of a casing, a valve seat consisting of a removable and reversible ring having sharp interior valve seat edges, a bearing shoulder in the casing and a lock,nut by which the seat is reversibly locked in place against said shoulder, a centrally guided valve stem, a bevel faced valve carried thereby, and movable to seat in the sharp interior seat edges, a rock shaft journalled at right angles with the valve stem and having a forked lifter projecting upon each side of the valve stem, a collar fixed to the stem, and engageable by the lifter to lift the valve, and a spring act ing against the opposite side of the collar to close the valve, a bushing in which the shaft is turnable, said bushing having a sharp interior angle forming a seat and a beveled face collar upon the shaft co-acting with said seat, a sleeve fitting a rectangular part of the shaft and carrying the lifter and a spring surrounding the shaft acting normally to hold the collar upon the seat, said collar with the shaft turnable in the bushing forming a tight joint without packing.

2. The combination with a valve stem and bevel faced valve and its seat, of a rock shaft journalled at right angles with the valve stem, said shaft having a rectangular portion carrying forked lifter arms, and a collar upon the valve stem engageable by the lifter arms to open the valve, a spring acting against the opposite side of the collar to close the valve when released, a bushing in which the shaft is closely turnable, said bushing having a sharp interior edge and a bevel faced collar upon the shaft turnable in contact with said seat whereby the moving joint is made tight without other packing.

3. A- valve mechanism including a casing, a valve seat therein having an annular knife like edge, a valve within said casing with a beveled face movable to open and close with relation to said knife-like edge, a collar upon the valve stem above the valve, a rock shaft journaled transversely in the casing and ex tending through one side, a bifurcated lifter projecting from the rock shaft below the valve stem collar adaptedto transmit a vertical movement to the valve, a spring engageable with the collar to close the valve In testimony whereof I have hereunto set against its seat, a bevel faced circular collar my hand in the presence of two subscribing on the rock shaft, and a knife-edged seat witnesses.

therefor in the casing, a spring co-acting to GEORGE LEANDER FISH. impel the collar against the seat, and means lvVitnesses: 0n the outer end of the rock shaft to turn it BERNARD M. DooLm,

and lift the valve. SCOTT G. SNOWDEN. 

